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Finding the Fourth Proportional to 130,091.94, 179,516.94 and 79,097.64

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Solution

The fourth proportional to 130,091.94, 179,516.94 and 79,097.64 is: 109,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,091.94 : 179,516.94 = 79,097.64 : x
  2. Step 2: Convert to fraction form
    130,091.94/179,516.94 = 79,097.64/x
  3. Step 3: Cross multiply
    130,091.94x = 179,516.94 × 79,097.64
  4. Step 4: Simplify right side
    130,091.94x = 14,199,366,294.02
  5. Step 5: Solve for x
    x = 14,199,366,294.02/130,091.94
  6. Step 6: Final answer
    x = 109,148.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.